The panic_gate check in NTP before 4.2.8p5 is only re-enabled after the first change to the system clock that was greater than 128…

Description

The panic_gate check in NTP before 4.2.8p5 is only re-enabled after the first change to the system clock that was greater than 128 milliseconds by default, which allows remote attackers to set NTP to an arbitrary time when started with the -g option, or to alter the time by up to 900 seconds otherwise by responding to an unspecified number of requests from trusted sources, and leveraging a resulting denial of service (abort and restart).

Scores

EPSS (exploitation in 30 days)

9.1% · top 4.7% of all CVEs (4 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Weakness

• n/a
• CWE-361 (opens in a new tab)All about CWE-361 and its CVEs

Affected products

• n/a

  • affected n/a

References (39)

• RHSA-2015:1930 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• SUSE-SU:2016:1912 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• [slackware-security] 20160223 ntp (SSA:2016-054-04) (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• openSUSE-SU:2016:1423 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• USN-2783-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• SUSE-SU:2016:1177 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• https://ics-cert.us-cert.gov/advisories/ICSA-15-356-01 (opens in a new tab)x_refsource_MISCx_transferred
• https://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• http://support.ntp.org/bin/view/Main/SecurityNotice#January_2016_NTP_4_2_8p5_Securit (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://bugzilla.redhat.com/show_bug.cgi?id=1271076 (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://www-01.ibm.com/support/docview.wss?uid=swg21980676 (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://support.citrix.com/article/CTX220112 (opens in a new tab)x_refsource_CONFIRMx_transferred
• FEDORA-2015-77bfbc1bcd (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
• https://www.ibm.com/support/home/docdisplay?lndocid=migr-5099428 (opens in a new tab)x_refsource_CONFIRMx_transferred
• FEDORA-2015-f5f5ec7b6b (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
• DSA-3388 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• https://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• http://aix.software.ibm.com/aix/efixes/security/ntp_advisory5.asc (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://www.cs.bu.edu/~goldbe/NTPattack.html (opens in a new tab)x_refsource_MISCx_transferred
• SUSE-SU:2016:2094 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• FEDORA-2016-34bc10a2c8 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
• 1034670 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• https://www-01.ibm.com/support/docview.wss?uid=isg3T1024073 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 77312 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• SUSE-SU:2016:1311 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• FreeBSD-SA-16:02 (opens in a new tab)vendor-advisoryx_refsource_FREEBSDx_transferred
• https://www-01.ibm.com/support/docview.wss?uid=swg21979393 (opens in a new tab)x_refsource_CONFIRMx_transferred
• openSUSE-SU:2016:1292 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• https://www-01.ibm.com/support/docview.wss?uid=nas8N1021264 (opens in a new tab)x_refsource_CONFIRMx_transferred
• SUSE-SU:2016:1247 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• https://www-01.ibm.com/support/docview.wss?uid=isg3T1023885 (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://bto.bluecoat.com/security-advisory/sa113 (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://www-01.ibm.com/support/docview.wss?uid=swg21983501 (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://www-01.ibm.com/support/docview.wss?uid=ssg1S1005821 (opens in a new tab)x_refsource_CONFIRMx_transferred
• http://support.ntp.org/bin/view/Main/NtpBug2956 (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://www-01.ibm.com/support/docview.wss?uid=swg21983506 (opens in a new tab)x_refsource_CONFIRMx_transferred
• SUSE-SU:2016:1175 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• https://security.netapp.com/advisory/ntap-20171004-0001/ (opens in a new tab)x_refsource_CONFIRMx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2015-5300](https://trackcve.app/badge/CVE-2015-5300.svg)](https://trackcve.app/cve/CVE-2015-5300)

Record last updated 6 Aug 2024, 06:41 UTC.